 A 1 km stretch of dual-carriageway, passing the Causeway Hospital, yields to single-carriageway after the Wattstown Roundabout towards Ballymoney.A further stretch of dual-carriageway is provided on the county border of Londonderry and Antrim near Macfin, including the first of many crossings of the Belfast-Derry railway.On reaching Ballymoney, the A26 route skirts past the town, and meets the B62 Ballybogy Road towards Portrush at a roundabout.